Thamnophis atratus (Santa Cruz Garter Snake) (Attributes)
Thamnophis bogerti
Thamnophis brachystoma (Shorthead Garter Snake) (Attributes)
Thamnophis butleri (Butler's Garter Snake) (Attributes)
Thamnophis chrysocephalus (Goldenhead Garter Snake)
Thamnophis conanti
Thamnophis couchii (Western Aquatic Garter Snake) (Attributes)
Thamnophis cyrtopsis (Blackneck Garter Snake (cyrtopsis) (Attributes)
Thamnophis elegans (Western Terrestrial Garter Snake) (Attributes)
Thamnophis eques (Mexican Garter Snake) (Attributes)
Thamnophis errans
Thamnophis exsul (Montane Garter Snake)
Thamnophis fulvus (Highland Garter Snake) (Attributes)
Thamnophis gigas (Giant Garter Snake) (Vulnerable) (Attributes)
Thamnophis godmani (Godman's Garter Snake)
Thamnophis hammondii (Two-striped Garter Snake) (Attributes)
Thamnophis lineri
Thamnophis marcianus (Checkered Garter Snake) (Attributes)
Thamnophis melanogaster (Blackbelly Garter Snake) (Endangered)
Thamnophis mendax (Tamaulipan Montane Garter Snake) (Endangered)
Thamnophis nigronuchalis (Southern Durango Spotted Garter Snake) (Attributes)
Thamnophis ordinoides (Northwestern Garter Snake) (Attributes)
Thamnophis postremus (Mexican Garter Snake) (Attributes)
Thamnophis proximus (Western Ribbon Snake) (Attributes)
Thamnophis pulchrilatus (Attributes)
Thamnophis radix (Plains Garter Snake) (Attributes)
Thamnophis rossmani (Rossman's Garter Snake)
Thamnophis rufipunctatus (Narrowhead Garter Snake, Narrowhead Watersnake) (Attributes)
Thamnophis saurita (Eastern Ribbonsnake) (Attributes)
Thamnophis scalaris (Longtail Alpine Garter Snake) (Attributes)
Thamnophis scaliger (Short-tail Alpine Garter Snake) (Vulnerable)
Thamnophis sirtalis (Common Garter Snake) (Attributes)
Thamnophis sumichrasti (Sumichrast's Garter Snake)
Thamnophis unilabialis
Thamnophis validus